What ranges are you getting from a full charge (MG4 SE)

[Tigger]

I'm interested if a few people can log here what sort of real-world distances they are achieving on the SE version (not the Long Range) from the point of a full charge to any low-level battery warning being activated.

Stu does exactly this in his video MG4 SR 70mph Range Test - achieving 160 miles at 3.2 miles/kwh, mostly on the motorway. Watch it - it's only 12 minutes!

 

[Buster72]

Stu does exactly this in his video MG4 SR 70mph Range Test - achieving 160 miles at 3.2 miles/kwh, mostly on the motorway. Watch it - it's only 12 minutes!

He also did a 60 mph test and averaged just over 3.5.

 

[siteguru]

I've just put my car on charge ... SoC was 17%* so 83% used over 118.5 miles. That equates to a range of 142 miles.

* However I'm wondering if indicated SoC drops off a cliff once below 20% in the SR model? I wonder this because a previous event showed I was down to 6% remaining, but when I charged the car the amount delivered was more indicative of 20% remaining. (i.e. 46.5kWh was delivered from the Wallbox, and with typical efficiency that equated to ~41kWh stored). Until this last journey home tonight the GOM range was equating to 155 miles - it only dropped to 142 with this last ~20 miles trip.

 

[NickHeynes]

I'd rather not be caught up in traffic all the time but that's just the reality of living in South Essex
the nerdy part of me likes to do the maths at the moment but that will undoubtedly wear off !
My SR was showing 98% and 235 miles on eco mode this morning.
now shows 84% and 202 after a 27 mile drive
little bit of a.c now and again.
20 mph average
around 9 degrees
Light rain

pretty good I think

Should have said it's an SE SR

 

[sdjmchattie]

I’ve just today driven mine from Oxford to Nottingham. 4.2 miles per kWh, almost all dual carriageways and motorways. I did choose to tail a lorry or two on the motorway so was doing around 55-60 MPH at the time. We completed 116 miles going from 100% down to 46% battery when we arrived. So extrapolating, the whole battery might have done ~215 miles under those conditions.

 

[siteguru]

I've just put my car on charge ... SoC was 17%* so 83% used over 118.5 miles. That equates to a range of 142 miles.

* However I'm wondering if indicated SoC drops off a cliff once below 20% in the SR model? I wonder this because a previous event showed I was down to 6% remaining, but when I charged the car the amount delivered was more indicative of 20% remaining. (i.e. 46.5kWh was delivered from the Wallbox, and with typical efficiency that equated to ~41kWh stored). Until this last journey home tonight the GOM range was equating to 155 miles - it only dropped to 142 with this last ~20 miles trip.

As a follow up ... I left it charging overnight to 100%. That's an 83% "fill" so a calculated 42.1kWh stored. My Wallbox app says it delivered 44.2kWh for this charge session ... this would give a charge efficiency of 95.2% - which I don't believe as usual efficiency is closer to 90%. So I think the SoC indication (17% remaining) was a little low.

 

[Dan C]

I do lots of short trips ( normally 1-2miles, a few 5mile trips and the odd 8mile trip ) my SR has been doing 120miles out of the full charge to 0%. It’s the constant heating up the cabin from cold that trashes the range.

For my charging at home on a EV tariff it’s still way way cheaper than petrol car to run, however if I relied on public charging then it would be a lot cheaper sticking with petrol and diesel.

I’m expecting the range to increase to 180 miles + when we get to milder weather.

 

[siteguru]

After charging up last night the GOM this morning showed a range of 172 miles ... that's almost 3.4 mpkWh, which is around what the Since Last Charge indicated before I started charging.

 

[Macadoodle]

After charging up last night the GOM this morning showed a range of 172 miles ... that's almost 3.4 mpkWh, which is around what the Since Last Charge indicated before I started charging.

That's about what my SR returned today over a 70 mile trip, a marked improvement over the end of the year figures which struggled to get over 2.5
Think I'll try to block the grill vents with duck tape for an experiment, hard to believe it makes much difference but if they went to the trouble doing the active vents for the trophy, maybe.....?

 

[Macadoodle]

For my charging at home on a EV tariff it’s still way way cheaper than petrol car to run, however if I relied on public charging then it would be a lot cheaper sticking with petrol and diesel.

It's an uncomfortable truth, the EV 'revolution' simply isn't going to appeal to a large section of the British public.
Terraced house, high rise block, it's public charging I'm afraid.
I would most certainly have no interest if I didn't have off road parking and my own charger.
I hate using public charging, the price, the waiting, the w*nkers you often run into. Haven't needed to go near one with the 4 thank gawd, long may it continue.

 

[Ayoull]

I've just put my car on charge ... SoC was 17%* so 83% used over 118.5 miles. That equates to a range of 142 miles.

* However I'm wondering if indicated SoC drops off a cliff once below 20% in the SR model? I wonder this because a previous event showed I was down to 6% remaining, but when I charged the car the amount delivered was more indicative of 20% remaining. (i.e. 46.5kWh was delivered from the Wallbox, and with typical efficiency that equated to ~41kWh stored). Until this last journey home tonight the GOM range was equating to 155 miles - it only dropped to 142 with this last ~20 miles trip.

This would only happen if you haven't balanced your battery and been topping up as the BMS is guessing how much charge you have

 

[MoDolph]

That's about what my SR returned today over a 70 mile trip, a marked improvement over the end of the year figures which struggled to get over 2.5
Think I'll try to block the grill vents with duck tape for an experiment, hard to believe it makes much difference but if they went to the trouble doing the active vents for the trophy, maybe.....?

If you do a lot of 70mph driving then the grill block might be worth it in winter, but if your just driving around town don't bother.

 

[siteguru]

This would only happen if you haven't balanced your battery and been topping up as the BMS is guessing how much charge you have

Except that EVERY charge I have done has been to 100% and left for plenty of time for BMS to balance.

Date	End %	Start %	kWh Stored	kWh Charged
28-Nov-22	100%	50%	25.40	30.07
06-Dec-22	100%	30%	35.56	40.81
09-Dec-22	100%	20%	40.64	46.5
12-Dec-22	100%	24%	38.61	40.2
14-Dec-22	100%	18%	41.66	43.74
18-Dec-22	100%	65%	17.78	22
21-Dec-22	100%	32%	34.54	36.35
31-Dec-22	100%	50%	25.40	29.19
05-Jan-23	100%	17%	42.16	44.2

 

[Ayoull]

Except that EVERY charge I have done has been to 100% and left for plenty of time for BMS to balance.

What are we classing as plenty of time? Does the ismart app show 0kW pull?

As I've had one balance take 3hrs on the MG4 after running it low and doing a top up

 

[siteguru]

I've not sat and watched what's happening - this is overnight remember. But for example ... my last charge was expected to finish at around midnight (according to iSMART) but the car was left plugged in until I went to work at about 7.30am; if the BMS balance was required and going to run then it had several hours opportunity to do so.

My Wallbox app shows that it was charging for 6 hours and 50 minutes, which suggests that the car didn't ask for a balance, as the time divided by the delivered charge equates to an average rate of 6.473kW.